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Finding the Fourth Proportional to 663,342.53, 915,445.08 and 373,045.41

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Solution

The fourth proportional to 663,342.53, 915,445.08 and 373,045.41 is: 514,820.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,342.53 : 915,445.08 = 373,045.41 : x
  2. Step 2: Convert to fraction form
    663,342.53/915,445.08 = 373,045.41/x
  3. Step 3: Cross multiply
    663,342.53x = 915,445.08 × 373,045.41
  4. Step 4: Simplify right side
    663,342.53x = 341,502,585,201.08
  5. Step 5: Solve for x
    x = 341,502,585,201.08/663,342.53
  6. Step 6: Final answer
    x = 514,820.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.